/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 * */

// AmzServer - Tototoy's server model.
// Author: tonyjobmails@gmail.com (tonyhack).
//
// Define class Epoller.
//
// Epoller is a simple wapper of epoll.
//

#ifndef __EPOLLER__H
#define __EPOLLER__H

#include <sys/epoll.h>

#include "common.h"

namespace amz {

class Epoller {
 public:
  explicit Epoller(int size);
  ~Epoller();

  // Register/Unregister to listen a file descriptor.
  bool Register(int fd, int events, void *ptr = NULL);
  bool Unregister(int fd);

  // Modify a file descriptor
  bool Modify(int fd, int events, void *ptr);

  // Wait for event from file descriptor, and timeout
  int Core(struct epoll_event *events, int max_events, int timeout_milliseconds = -1);

  // Close epoll file descriptor.
  void Close();

 private:
  int epoll_fd_;
};

}  // namespace amz

#endif  // __EPOLLER__H

